Fort St. John in September

7.2out of 10

Possible, with caveats

Mild: highs around 17°C. Some rain: about 8 rainy days.

17°CAvg high
5°CAvg low
8Rainy days (43 mm)
12:27 hDaylight
06:44Sunrise · 19:11 Sunset

Why this score

  • Mild: highs around 17°C
  • Some rain: about 8 rainy days

What to wear and pack

  • Layers you can add or remove
  • Comfortable walking shoes

How reliable is the forecast?

Rain in September varies a lot between years (±3.2 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.

Year at a glance

-9° -17° J -4° -14° F 1° -10° M 10° -2° A 17° 4° M 21° 9° J 23° 10° J 22° 9° A 17° 5° S 8° -1° O -3° -9° N -8° -15° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January -9°C-17°C25 mm 7– – 4.2
February -4°C-14°C16 mm 5– – 4.5
March 1°C-10°C23 mm 7– – 4.2
April 10°C-2°C25 mm 6– – 6.1
May 17°C4°C40 mm 8– – 7.3
June 21°C9°C74 mm 11– – 7.4
July 23°C10°C81 mm 12– – 7.5
August 22°C9°C46 mm 9– – 7.9
September 17°C5°C43 mm 8– – 7.2
October 8°C-1°C33 mm 8– – 5.6
November -3°C-9°C31 mm 7– – 4.1
December -8°C-15°C22 mm 6– – 4.3

Frequently asked questions

How hot is Fort St. John in September?

Daytime highs average 17°C and nights about 5°C.

When is the best time to visit Fort St. John?

The best months are August, July, June.